   [^DoFn$ProcessContext c]
   (.output c (.element c)))
 
-
 (defn make-nippy-coder
   {:doc "Returns an instance of a CustomCoder using nippy for serialization"
    :added "0.1.0"}

                        (assert (instance? transform View$AsSingleton) "Default values can only be set for Singleton views")
                        (if v
                          (.withDefaultValue transform v)
                          transform))}}))

(defn view
  ([{:keys [type]
     :or {type :singleton}
     :as options}

    (key elt)))

(defn dval
  {:doc "Returns the value part of a KV or MapEntry."
   :added "0.1.0"}
  [elt]
  (if (instance? KV elt)
    (let [^KV kv elt]
